An son s earls



NNSON'SENNLS, ONN'NW YORK, Y,`

Lener; Patent No. 77,769, @med May 12,1868.

IMPROVEMENT IN SHAFT-'COUPLINeroR GANNIA'GBS.

'me' iig'ehule retenus tu in 'time trttu utmt :nu mating met nf fige"same,

TO ALL PERSONS To WHOM 'THESE PRESENTS SHALL COME: i i

Be it known that I, ASON SEARLS, of 'the citr of New York, have inventeda, new and useful improvement in shaftcouplings -for omringen-which Icallan Improved vShaft-Couplingg end I do hereby deciere the fol?.lowing, ta.ken together with the accompanying drawings, to'be a. full,clear, und exact description of the same.

'My inven-tionconsists in makingshaft or p ole-eonplingin the form of ahook, vand closing the hook with the elongated head of lthe T-headedbolt I, curved to t the aperture of the hook and also the arrangement ofa rubber or other Spring i'n a. recess in 'the hook underthe nut of thebo1t,to m'aintain 'a constant pressure on the paris, t0 Pret/eiltrattling and wear, nd prevent the nut' from unscrewing. A l

This hook is'to attach to the boit or pin of n-comnion shaft-clip, andis designed to becomereadilydetached 'when desired. and perfectly safefrom accident, lsind free from vibration and rattle. i

To better describe its ports, reference ismnde to Figure 1, which is a.lsectional view of the hook A, vnut E, rubber K, washer J, T-hended boltI, und thc pin of the lip x L Figure 2 is i* front viewl of the book A,showing the elongateden'd of the T-hend bolt Iin the nperture'ohthehoolr.- 'i Figure is a view ofthe hook A-,nlut E, and the boltI,turned half' around, opening the aperture of the hook, showing thecurved form ofthe bolt'Lreilersed from iig. I. i I

' The bolt I, in iig. 1, clasps the pin `B. By screwing downt-he nut Eon to the rubber or equivalent spring K,'a. constant pressure ismaintained on the piirts,preventing lvibration. By turning the 'nut Ebackwards until the riveted end of th bolt at L engages' with the threadof vthe nut, the heed of the bolt is pushed out ofy the aperture of thehook, and turned as in fig. 3, admitting the detaching of' thehook. "Ihehook ispmVided with u recess, C, for the reception of the rubber K, andover the rubber is :t washer, J, to.protect iin- Having thus describedmy invention, I claimi I. Thefshaft-hook A, with a. recess, C, in'theback part-of it, nud hole for bolt'I, as set forth. 2. The curved-T-heud bolt I, vfor the purposes described.

The combination of the bolt I, spring K, washer J, und nut E, incombination with the hook 'A and pin B, substantially as described, andall for the purposes sei'. forth. f' y Signed this, the twentieth'day ofNovember, 1867. I v' v Witnessesi, A

JOHN A. GIFFORD, Gnu-H. Ross'.

-ANSON SEANLS 7V 'l

